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New Corona Virus Variants Causing Concern Each day we are hearing in the news about the emergence of new virus strains of the human corona virus that causes COVID-19.  There are some indications the strains are more virulent and can produce more serious illness, creating concerns amon

If you are familiar with disinfectants and infection control, you know that all EPA-registered disinfectants have required concentrations and contact times in order to achieve the desired efficacy. But what happens when a disinfectant is applied incorrectly, either at a lower than req